Merge pull request #13295 from andrewpthompson/andrewpthompson-dev-core-602

Fix PHP 7 strict warnings CRM_Core_DAO::getContactIDsFromComponent passed by reference

diff --cc CRM/Core/Form/Task.php
Simple merge

diff --cc CRM/Event/Form/Task.php
Simple merge

diff --cc CRM/Grant/Form/Task.php
Simple merge

diff --cc CRM/Member/Form/Task.php
Simple merge

diff --cc CRM/Pledge/Form/Task.php
Simple merge